Licence: Public Domain Mark
Credit: Max Theiler. Photograph by Pach Bros., N.Y. about 1951. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/V0027627/full/800%2C/0/default.jpg)
Licence: Public Domain Mark
Credit: Max Theiler. Photograph by Pach Bros., N.Y. about 1951. Wellcome Collection. Source: Wellcome Collection.